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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2026-42248

Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike other platforms, the Windows implementation of the update verification routine unconditionally returns success so no digital signature or trust validation is performed before staging or executing update payloads, enabling attacker‑supplied executables to be accepted and later executed by the application. Critically, Ollama for Windows performs silent automatic updates, so the malicious payload may be installed automatically without user awareness. Maintainers of this project were notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Versions from 0.12.10 to 0.17.5 were tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

CVSS 7.7 · HighBuzz score 31.1

Buzz score

Why this CVE is surfacing

Buzz score total 31.1

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 16.1 · diversity 15.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
16.1
4 evidence mentions in the snapshot
Diversity score
15.0
3 sources across 3 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
4 source links · newest first
  • Week in review: cPanel vulnerability actively exploited, DigiCert breach, LinkedIn job scamsHelp Net Security

    Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Your work apps are quietly handing 19 data points to someone Office work in 2026 relies on mobile apps used alongside personal tools like banking and messaging. Ten widely used workplace apps, including Gmail, Microsoft Teams, Zoom, Slack, and Notion, have over 12.5 billion Google Play downloads. Research from Incogni shows these apps collect an average of 19 data points … More →

    newswww.helpnetsecurity.comMay 10, 2026, 8:00 AM
  • Unpatched flaws turn Ollama’s auto-updater into a persistent RCE vector, researchers sayHelp Net Security

    Researchers at Striga have disclosed two vulnerabilities (CVE-2026-42248, CVE-2026-42249) in Ollama’s Windows auto-updater that, when chained together, may allow an attacker to covertly plant a persistent executable that runs on every login. CVE-2026-42248 and CVE-2026-42249 Ollama is an open-source tool for running large language models locally. It’s is used by those who don’t want their data to leave their machine and don’t want to be constrained by API costs, usage limits, or the requirement of … More →

    newswww.helpnetsecurity.comMay 5, 2026, 3:24 PM
  • https://ollama.com/ollama.com

    No excerpt available.

    Productollama.comApr 29, 2026, 12:16 PM
  • https://cert.pl/en/posts/2026/04/CVE-2026-42248/cert.pl

    No excerpt available.

    Vendor Advisorycert.plApr 29, 2026, 12:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

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